CN107251381B - The construction and forming method of electrical connection section, the motor for applying the construction - Google Patents
The construction and forming method of electrical connection section, the motor for applying the construction Download PDFInfo
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- CN107251381B CN107251381B CN201680011688.0A CN201680011688A CN107251381B CN 107251381 B CN107251381 B CN 107251381B CN 201680011688 A CN201680011688 A CN 201680011688A CN 107251381 B CN107251381 B CN 107251381B
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- 239000000463 material Substances 0.000 claims description 53
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/04—Connections between commutator segments and windings
- H02K13/08—Segments formed by extensions of the winding
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2791—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
- H02K3/20—Windings for salient poles for auxiliary purposes, e.g. damping or commutating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Current Collectors (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The construction of electrical connection section of the invention is the construction that the terminal (53) of the energization part (50) of motor and winding wire (30) are carried out to the electrical connection section after thermal bonding.Terminal (53) has the fusing department (53b) positioned at the fastener (53a) of base end side and positioned at front end side.Winding wire (30) include fastener (53a) winding and one end (36) be connected to by fusing department (53b) generate molten ball (55) tie part (31)；With from wind state be arranged motor main winding portion (34) tensioning setting and with the continuous connecting line portion (33) in the other end of tie part (31).In addition, the one end (36) of tie part (31) is the state for not acting on connecting line portion (33) to the tension that main winding portion (34) side is pullled.
Description
Technical field
The present invention relates to the construction of the electrical connection section between the terminal and winding wire of the energization part of motor, apply the structure
The forming method of the rotor and motor and electrical connection section made.
Background technique
In the past, the electricity as the power source for the various device for becoming onboard electrical element or office machine etc
Machine uses the DC motor of permanent magnet excitation formula.For example, as it is known that having the rotor for being wound with winding wire relative to being fixed with determining for permanent magnet
The brush motor that sub (stator) is rotatably pivotally supported.The commutation of the brush of stator side and rotor-side is used in the motor
Device switches over the sense of current flowed in winding wire, so that rotor is rotated.
The end of the terminal of commutator and winding wire is passed through to the thermal bonding being soldered or welded etc (utilizes what heat carried out to connect
Conjunction processing) it is welded together, or be fixed together by fusion, to be electrically connected.In addition, for being mounted in commutator
Absorb become electrical noise the reason of surge voltage rheostatic motor, have by the end of the terminal of commutator and winding wire with
The motor (such as patent document 1) of rheostatic metal terminal integrally welding.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2006-296023 bulletin
Summary of the invention
Problems to be solved by the invention
However, in the case where being electrically connected the end of the terminal of commutator and winding wire by thermal bonding, generally
It is that winding wire is being banded in terminal after engaging, welding or welding etc. are carried out since the front end side of terminal.At this moment, due to
Winding wire is wound relative to rotor core etc. with defined tension (namely coiling tension), therefore, becomes and is tying up
The state of the pulling force to rotor core etc. is acted in the end side of the winding wire of terminal.In addition, if being locked in this state
The end of the winding wire of terminal is not loose and static, then acting in the end of winding wire will be stopped with power more than above-mentioned pulling force
In the power of terminal.It is, by winding wire in the state that terminal is tied up and is engaged, in the end side working tension of winding wire
With to stop power in this, still, if herein apply thermal bonding when heat and keep the power of the latter smaller than the former power, can lead
Cause the broken string of winding wire.
For such project, such as it is contemplated that by presetting with the end side in thermal bonding in winding wire
The not component that the mode of working tension is kept keeps pulling force as small as possible in thermal bonding, thus when preventing thermal bonding
Broken string.However, such method after removing the component kept, is located at and is generated by thermal bonding in terminal
The winding wire of root of molten ball become the state that always acts on of above-mentioned pulling force.Therefore, it is possible to due to the aging root
Part can break.Particularly, the line footpath of the small winding wire of motor size is thin, then relative to root part pulling force shadow
Sound is bigger, and therefore, a possibility that broken string is bigger.
The present invention is proposed in view of such project, is configured to prevent motor it is intended that providing
Terminal and the construction of electrical connection section of broken string after winding wire thermal bonding of energization part and forming method thereof and apply this
The rotor and motor of the construction of electrical connection section.In addition, being not limited to the purpose, other objects of the present invention are, play by rear
Bring function and effect are respectively constituted shown in the form for carrying out an invention stated, i.e., by the not getable effect of conventional art
Effect.
Solution to problem
(1) construction of electrical connection section disclosed herein is that the terminal of the energization part of motor and winding wire are carried out heat to connect
The construction of electrical connection section after conjunction, which is characterized in that the terminal has positioned at the fastener of base end side and positioned at front end side
Fusing department, the winding wire include tie part, wind in the fastener and one end is connected to and is given birth to by the fusing department
At molten ball；With connecting line portion, from wind state be arranged the motor main winding portion tensioning setting and with it is described
The other end of tie part is continuous, and the one end of the tie part is by the connecting line portion to main winding portion layback
The state that the tension pulled does not act on.
(2) preferably, the tie part after thermal bonding is the support for keeping the winding state relative to the fastener
The state that power is had an effect, the support force are bigger than the tension.
(3) preferably, the terminal has zoning portion, which carries out zoning simultaneously for the fastener and the fusing department
And the state for keeping the support force bigger than the tension.
(4) preferably, the molten ball is when the winding wire is carried out thermal bonding by the front end side from the terminal by institute
State zoning portion limitation promote and generate.
(5) preferably, zoning portion cross-sectional area compared with the fastener is big.
(6) preferably, the zoning portion includes the wide width part widened and formed compared with the fastener.
(7) preferably, the zoning portion includes the wall thickness formed in a manner of wall thickness compared with the fastener.
(8) preferably, it is formed with compared with the zoning portion in the fusing department by the notch section of cross-sectional area reduction.
(9) preferably, the zoning portion includes heterogeneous portion, which is difficult to by having compared with the material of the molten ball
The material of the property of fusing is formed.
(10) preferably, in the terminal, be sequentially arranged from the base end side the fastener, the zoning portion and
The fusing department, the tie part include by the zoning portion sideling across cross span portion, also, the cross span portion matches
Be set to, along the terminal main winding portion side radical be less than along it is described while opposite side another side
Radical.
(11) preferably, the energization part includes the conduction panel that the winding wire is wound together with the iron core of the motor,
In the terminal of the conduction panel, the cross span portion is positioned only at another surface side.
(12) preferably, the molten ball is located at another surface side of the terminal.
(13) preferably, the energization part includes the conduction panel that the winding wire is wound together with the iron core of the motor,
The connecting line portion the conduction panel the terminal with by the base end side and the front end side connection length direction
Orthogonal width direction, the two-end part in the connecting line portion is in the same side.
(14) preferably, the front end of the winding wire is located at the fusing department.
(15) preferably, the winding wire is wound in a manner of nonoverlapping in the fusing department.
(16) preferably, the fusing department is formed by material low-melting compared with the material of the winding wire.
(17) preferably, the material of the fusing department is phosphor bronze, and the material of the winding wire is oxygen-free copper.
(18) rotor disclosed herein is characterized in that, which recorded using any one of above-mentioned (1)~(17)
The construction of the electrical connection section terminal of the energization part and the winding wire are formed by connecting.
(19) in addition, motor disclosed herein is characterized in that, which is using any one in above-mentioned (1)~(17)
The terminal of the energization part and the winding wire are formed by connecting by the construction for the electrical connection section that item is recorded.
(20) forming method of the first electrical connection section disclosed herein is the end to form the energization part with terminal
The method of the interconnecting piece of electricity between son and winding wire, the terminal have fusing department with fastener, in front end side in base end side
And the winding wire thermal bonding with motor, this method includes winding working procedure and bonding process.It is set in above-mentioned winding working procedure
Set: by the winding wire be set as the main winding portion of the motor made of winding state, between the main winding portion across
The winding wire is wrapped in the first winding wire portion made of the fastener and connected with first winding wire portion by connecting line portion
Continuous ground is by the winding wire in the second winding wire portion that the fusing department is entwined.In above-mentioned bonding process, twined with described
It is carried out parallel or behind around process, fusing department melting is subjected to thermal bonding with second winding wire portion.Also, institute
It states in winding working procedure, with the support force ratio in first winding wire portion relative to the fastener by the connecting line portion to institute
The big mode of power that main winding portion side is pullled is stated, the winding wire is wound, in the bonding process, keeps the support force
The state bigger than the tension unchangeably terminates thermal bonding.
(21) forming method of the second electrical connection section disclosed herein is the terminal and winding to form the energization part of motor
The method of the interconnecting piece of electricity between line, this method includes molding procedure, winding working procedure and bonding process.In the molding procedure
In, the terminal is shaped to, the base end side of the terminal is set as fastener, front end side is set as fusing department, and will compare
The fusing department is set as regulation shape made of the melting difficulty portion for being difficult to melt than the fusing department by the position of base end side.?
It in the winding working procedure, carries out after the molding procedure, is arranged in the winding working procedure: the winding wire is set as winding shape
The main winding portion of the motor made of state, will be described across the connecting line portion for the setting that is tensioned between the main winding portion
Winding wire is wrapped in the first winding wire portion made of the fastener and with first winding wire portion continuously by the winding
Line is wrapped in the second winding wire portion made of the fusing department.In the bonding process, with the winding working procedure it is parallel or
Followed by, fusing department melting is subjected to thermal bonding with second winding wire portion.
Invention effect
The construction and forming method of electrical connection section according to the present invention, the one end in tie part (the first winding wire portion),
Due to not acting on the tension of connecting line portion effect, the stress generated due to coiling tension will not be applied.Thereby, it is possible to
Prevent the broken string of an end portion due to caused by aging.In addition, even if in the case where electrical connection section is applied with vibration, due to one
End becomes the state that tension does not act on, thus, it is also possible to prevent from breaking caused by due to vibration.
Detailed description of the invention
Fig. 1 is the axial half-sectional view for having the motor of the rotor of construction for the electrical connection section for applying embodiment.
Fig. 2 is the perspective view of the state before the wiring of the rotor of exploded representation Fig. 1.
Fig. 3 is that in the part for constitute the rotor of Fig. 1, (a) is connected from the figure of end on observation iron core, (b) from end on observation
The perspective view of the figure of plate, (c) commutator.
Fig. 4 is after indicating the wiring of the rotor of Fig. 1 and to the partial side elevation view of the state after the welding of conduction panel.
Fig. 5 is the axial section for indicating the state before the wiring of the rotor of Fig. 4.
Fig. 6 is the schematic diagram for applying the conduction panel terminal of the construction of electrical connection section of embodiment, (a) expression welding
Before, (b) indicate welding after.
Fig. 7 is for illustrating before the schematic diagram of generation mechanism of broken string, (a) indicate welding, after (b) indicates welding.
(a), which is figure, (b) for illustrating to melt the position in difficult portion, in Fig. 8 is said to the effect in melting difficulty portion
Bright curve graph.
Fig. 9 is the flow chart for indicating an example of the method for manufacturing rotor of forming method of the interconnecting piece comprising embodiment.
(a)~(c) is the schematic diagram for indicating the variation of conduction panel terminal of (a) in Fig. 6 in Figure 10.
(a)~(f) is the schematic diagram for indicating to melt the variation in difficult portion in Figure 11.
Figure 12 is to indicate that schematic diagram, (a) of the winding state of the winding wire for variation conduction panel terminal are from axial direction
Figure, (b) of observation are the figures from radially.
In Figure 13 (a) and be (b) each of with (a) in Figure 12 and (b) corresponding figure after welding.
Figure 14 is the variation of (a) in Figure 12.
Figure 15 is the schematic diagram for indicating the winding state of the winding wire for commutator terminal (from the figure of end on observation).
Specific embodiment
Referring to attached drawing to the construction of the electrical connection section as embodiment, the rotor for applying the construction and motor and electricity
The forming method of interconnecting piece is illustrated.Embodiment as shown below is example, is not intended to exclude in reality below
Apply the application of the various modifications and technology do not expressed in mode.For each composition of present embodiment, without departing from its main purpose
Various modifications can be carried out in range to implement.Furthermore it is possible to selectively accept or reject as needed, or it can suitably carry out group
It closes.
In present embodiment, the DC motor of brush is illustrated, the energization to the rotor that will be made up of the motor thermal bonding
The construction for the interconnecting piece that the terminal and winding wire of part are electrically connected is illustrated, also, has carried out electricity to by thermal bonding
The construction of the interconnecting piece of connection is illustrated.In addition, in the present embodiment, the canoe (circuit composition) as winding wire
Illustrate Y connection mode (circuit of Y connection).That is, the rotor of present embodiment has: being connected by Y connection mode
Winding wire, connect the winding wire one end commutator and connect winding wire the other end conduction panel.
Commutator and conduction panel are contained in above-mentioned energization part.In present embodiment, illustrating will commutation by welding
Interconnecting piece between the terminal and winding wire of device is engaged, and passes through welding for the company between the terminal and winding wire of conduction panel
The case where socket part is engaged.In the following description, each structure of motor and rotor is illustrated, also, to as logical
The connecting structure of interconnecting piece between the commutator of electrical accessory and each terminal and winding wire of conduction panel is illustrated.Then to even
The forming method of socket part is illustrated.
[1. overall structure]
Fig. 1 is the axial half-sectional view of the DC motor 1 (hereinafter referred to as " motor 1 ") of present embodiment.Motor 1 is permanent magnet
The brushed DC motor of excitation-type has stator 2, rotor 3 and end hoop 4.
Stator 2 has: being formed as the shell 2A of bottomed tube；The fixed permanent magnet 2B with the inner peripheral surface along shell 2A.
In the state of assembling rotor 3, permanent magnet 2B and the iron core 20 of rotor 3 are opposite, and are prolonged in the axial direction in a manner of surrounding
Stretch setting.It is being more than the corresponding of iron core 20 that one end and the other end in the axial direction of the permanent magnet 2B of present embodiment, which all configure,
The position of one end and the other end.In shell 2A, space is formed between the end face and end hoop 4 of end 4 sides of hoop of permanent magnet 2B
2C.In addition, the bottom center in shell 2A is provided through the hole portion 2h of round, bearing block 2D is embedded in hole portion 2h.
Bearing block 2D has the bearing 2E of the one end for the shaft 10 for rotatably supporting rotor 3.
End hoop 4 has: fixed main part 4A, brush 4B and use in main part 4A holding in the opening portion of shell 2A
In the two binding post 4C to power to motor 1.Brush 4B is the brush contact portion 42a sliding contact with aftermentioned commutator 40
Part, supported and connect with binding post 4C by brush base portion (diagram omit).At end, hoop 4 is fixed on the state of shell 2A
Under, binding post 4C by the outside of shell 2A it is outstanding in a manner of be fixed on main part 4A.In the center of main part 4A through setting
There is the hole portion 4h of round, the bearing 4E for rotatably supporting the other end of shaft 10 is embedded in hole portion 4h.
Rotor 3 has: the iron core 20 rotated integrally with shaft 10, the commutator 40 and conduction panel 50 that are fixed on shaft 10.
Shaft 10 is the rotary shaft for being supported rotor 3, plays function to the output shaft that outside is taken out as by the output of motor 1
Energy.Iron core 20 is laminated iron core made of multiple steel plates of same shape are laminated, in its center so that the axial layer with steel plate
The folded consistent state in direction is fixed with shaft 10.Also, the winding wire 30 connected in a manner of Y connection is wound in iron core 20.
In Fig. 2 and Fig. 3 shown in (a), the iron core 20 of present embodiment is the shape with rotational symmetry three times.Specifically
For, iron core 20 is from being inserted and being formed there are three the central portion 21 of keyway 25, from central portion 21 to radial outside by shaft 10
It is arranged in a manner of spaced in circumferential direction by three teeth portion 22 of radiated entend setting and in the outer end of each teeth portion 22
Three arc sections 23 constitute, be formed with the gap 24 that surrounds of arc sections 23 of the front end side by being located at each teeth portion 22.The gap
24 be the axially extending slot in iron core 20, in the circumferential with there are three being formed at equal intervals of iron core 20.In the teeth portion 22 of iron core 20
Winding wire 30 is wound with defined the number of turns by the gap 24 of the two sides of the teeth portion 22.In addition, being wound with winding wire 30
The part of iron core 20 is coated with insulating layer (diagram is omited), it is ensured that insulating properties.
As shown in figure 4, winding wire 30 is the insulated electric conductor for generating magnetic force by electric current flowing.The winding of present embodiment
The material of line 30 is high-purity copper (oxygen-free copper), e.g. the coat of paint copper wire as made of the covering of the envelopes such as polyurethane.In addition, winding
Line 30 can also be formed by the material of (such as metal other than phosphor bronze, copper alloy, copper) other than high-purity copper.In iron core 20
The winding wire 30 that each teeth portion 22 is wound is connected in a manner of Y connection.That is, one end of winding wire 30 with aftermentioned commutator 40
Three terminal 42b (hereinafter referred to as " commutator terminal 42b ") in one connection after, in three teeth portion 22 of iron core 20
A winding, and three 53 (hereinafter referred to as " conduction panels of terminal of the other end of winding wire 30 and aftermentioned conduction panel 50
Terminal 53 ") in it is corresponding one connection.For example, the processing can be implemented in each teeth portion 22 by utilization bobbin winder device, thus
Form the rotor 3 of Y connection mode.Hereinafter, the winding wire 30 wound in iron core 20 is known as main winding portion 34, by main winding portion
The part (part that bulging is mountain shape) of the head face hump of slave iron core 20 in 34 is known as coiling packet 35.That is, main winding portion 34
It is the part for being arranged and generating magnetic force in winding wire 30 with winding state.
In Fig. 2 and Fig. 3 shown in (c), commutator 40 includes the resin system for being fixed on shaft 10 and the insulation as tubular
The supporter 41 of part；With metal three commutator segments 42.The material of the commutator segment 42 of present embodiment is high-purity
Copper (oxygen-free copper).As long as in addition, the material that commutator segment 42 is at least higher than the fusing point of brazing material (such as scolding tin), example
It can also such as be formed by metal (gold, silver) material other than phosphor bronze, copper alloy, copper.As shown in figure 5, present embodiment
In commutator 40, the change of the surge voltage for the reason of absorbing as electrical noise is configured and is equipped in the peripheral side of compacting part 44
Hinder device 43.
Supporter 41 in commutator 40 includes the first cylinder portion 41a for being equipped with commutator segment 42；Than the first cylinder portion
41a expanding middle part 41b；The second cylinder portion 41c of the first cylinder portion 41a opposite side is set to across middle part 41b；
With three foot 41d (insulation division) for protruding setting in the axial direction from the second cylinder portion 41c.Coiling packet 35 is located at the second cylinder portion
Around 41c (referring to Fig.1 and Fig. 4).In addition, foot 41d is from the prominent of the cricoid edge of the second cylinder portion 41c protrusion setting
It rises, is equally spaced set circumferentially.Foot 41d plays following functions: limiting the conduction panel 50 relative to shaft 10 in circumferential direction
And position radially, and will insulate between conduction panel 50 and shaft 10.
Commutator segment 42 includes the brush contact portion 42a that brush 4B carries out sliding contact；With the commutation of connection winding wire 30
Device terminal 42b.Brush contact portion 42a becomes the shape after dividing cylinder three, the first cylinder of inner circumferential surface and supporter 41
The outer peripheral surface of portion 41a carries out face contact.By the inner peripheral surface of the brush contact portion 42a of commutator segment 42 and the first cylinder portion 41a
Periphery plane-plane contact in the state of, cricoid compacting part 44 is installed, so that commutator segment 42 is fixed in supporter 41.
Commutator terminal 42b is the tabular from the arc-shaped end of brush contact portion 42a to radial outside protrusion setting
Position, engage (hooks) and pass through the thermal bonding of welding or welding etc afterwards and (heat is utilized winding wire 30 is wound multi-turn
Joining process) engaged.The commutator terminal 42b of present embodiment is engaged by welding with winding wire 30.In Fig. 4
Blacking position 45 indicate scolding tin.In addition, the material of the commutator terminal 42b of present embodiment is high-purity copper (anaerobic
Copper).
Commutator terminal 42b includes the fastener 42c of the base end side positioned at length direction (radial direction)；Positioned at front end side
Fusing department 42d；And the wide width part 42e being arranged between fastener 42c and fusing department 42d.That is, being pressed in commutator terminal 42b
According to from radially inner side outward be sequentially set with fastener 42c, wide width part 42e, fusing department 42d.In addition, about commutator end
The connecting structure (construction of the interconnecting piece between commutator terminal 42b and winding wire 30) including concrete shape of sub- 42b, will after
It states.
Conduction panel 50 is the metal plate part to form electroneutral point, as shown in Figures 1 and 5, in commutator 40
Between commutator terminal 42b and iron core 20, shaft 10 is embedded in outside the foot 41d of commutator 40.Conduction panel 50 is set as, with
The conduction panel terminal 53 that winding wire 30 connects is located at the coiling packet 35 than the winding wire 30 wound in iron core 20 by end 4 sides of hoop, and
20 side of iron core is leaned on positioned at than commutator terminal 42b.That is, conduction panel 50 separated with conduction panel terminal 53 with coiling packet 35 also with change
The mode separated to device terminal 42b, axial position are set in the middle part 70 between coiling packet 35 and commutator terminal 42b.
The interference between conduction panel terminal 53 and brush 4B is avoided as a result, also, conduction panel terminal 53 and winding wire 30 are subjected to heat
Heat when engagement is difficult to be transmitted to winding wire 30.
In Fig. 2 and Fig. 3 shown in (b), conduction panel 50 is the shape with rotational symmetry three times.Specifically, conducting
Plate 50 includes the planar portions 51 for the through hole 51h for having shaft insert at center；Setting is leaning on radial outside than planar portions 51
Three conduction panel terminals 53；The armstand portion 52 being continuously arranged between planar portions 51 and conduction panel terminal 53 and.This embodiment party
The conduction panel 50 of formula is formed by a plate of high-purity copper (oxygen-free copper).In addition, the material of conduction panel 50 is not limited to high-purity copper
(oxygen-free copper), such as it is also possible to the metal (gold, silver etc.) other than phosphor bronze, copper alloy, copper.By at least than brazing material (example
Such as scolding tin) the high material of fusing point form conduction panel 50.
Planar portions 51 are to form the position of electroneutral point, comprising: the annulus 51a inserted by shaft 10；With from annulus
Three extended portion 51b that 51a is arranged to radial outside with radiated entend.By each of three extended portion 51b
Armstand portion 52 and conduction panel terminal 53 are set on extended line when radial extension.The through hole 51h at the center of annulus 51a has
There is the internal diameter of a circle bigger than the outer diameter of shaft 10, and there is the recess portion for engaging the foot 41d of the supporter 41 of commutator 40
51g.Conduction panel 50 is set as non-contact with shaft 10 as a result, and is limited by means of foot 41d relative to shaft 10
In circumferential and radially position.In addition, foot 41d also engages with the keyway 25 of iron core 20.
Armstand portion 52 is the position for the axial position of regulation conduction panel terminal 53, and is the extension from planar portions 51
The end of the radial outside of setting unit 51b is extended to the direction intersected with planar portions 51 and (erects setting).Such as Fig. 2~Fig. 5
Shown, the planar portions 51 of the conduction panel 50 of present embodiment are placed in the end face of iron core 20 across insulating layer.That is, conduction panel 50
Extended portion 51b is placed in the teeth portion 22 of iron core 20, is jointly wound with winding wire 30 in planar portions 51 and teeth portion 22.
When planar portions 51 to be placed in the end face of iron core 20, armstand portion 52 provides the position of conduction panel terminal 53, thus conduction panel 50
Positioning become easy.
Conduction panel terminal 53 is from the end (being extended direction end) of the extended portion 51b opposite side in armstand portion 52
To radial outside protrusion setting flat position, by winding wire 30 wind multi-turn and engage (hooks) afterwards pass through welding or
The thermal bonding of welding etc is engaged.The conduction panel terminal 53 of present embodiment is formed by high-purity copper (oxygen-free copper), is led to
TIG welding is crossed to engage with winding wire 30.The position 55 with mesh pattern in (b) of Fig. 1, Fig. 4 and Fig. 6 is indicated by that will lead
The molten ball for solidifying and generating after the logical fusing of plate terminal 53.In addition, the type of welding is not limited to TIG welding, it can also be used
His arc welding.Connecting structure (conduction panel terminal 53 and winding wire 30 about the concrete shape for including conduction panel terminal 53
Between interconnecting piece construction), will be aftermentioned.
The conduction panel terminal 53 of present embodiment under the assembled state after being externally embedded to conduction panel 50 relative to shaft 10, with
The mode orthogonal with the axial direction of shaft 10 protrudes setting from armstand portion 52 outward.As a result, by winding wire 30 and conduction panel end
When son 53 carries out thermal bonding, it is easy to find target in conduction panel terminal 53, this improves joining process.In addition, by
Side orthogonal to the axial direction sets up conduction panel terminal 53, so that the welding electrode when engaging is on direction orthogonal to the axial direction
Movement is carried out, the control of manufacturing equipment becomes easy.In turn, by by conduction panel terminal 53 with the axial direction of shaft 10 just
The direction of friendship protrudes above setting, so that the distance away from coiling packet 35 becomes larger, heat when engagement is more difficult for delivery to winding wire 30.
In addition, the armstand portion 52 of present embodiment is formed and is straightened and being bent from planar portions 51 to vertical direction
Setting is set as axial parallel with shaft 10, and therefore, conduction panel terminal 53 is set to the direction protrusion orthogonal with armstand portion 52
It sets.In this way, by the way that armstand portion 52 is extended in the direction orthogonal with planar portions 51, thus in order to which in specified position, configuration is led
Logical plate terminal 53 and the length in armstand portion 52 needed becomes minimum.
Conduction panel terminal 53 be configured in the middle part 70 between coiling packet 35 and commutator terminal 42b, in axial direction
Middle section.This is because there are following benefits: conduction panel terminal 53 is more delivered to the heat of winding wire 30 from 35 teletransmission of coiling packet
Influence the benefit of smaller benefit, conduction panel terminal 53 then easier winding winding wire 30 more close from coiling packet 35.That is, passing through
The axial position of conduction panel terminal 53 is located to the middle section of middle part 70, can inhibit engagement when heat transmitting it is same
When, it is ensured that the easness of the winding operation of Xiang Tiexin 20.In addition, the middle section said herein is not stringent middle part 70
The center of axial length L refers to the defined width including center.That is, conduction panel 50 makes planar portions 51 be placed in iron core 20
In the state of end face, the central area apart from coiling packet 35 and commutator terminal 42b approximately equidistantly is located at conduction panel terminal 53
Mode in domain sets the height (axial length) in armstand portion 52.
That is, conduction panel terminal 53 is set as, front end is located at the position that radial outside is leaned on than the outer peripheral surface of iron core 20, with around
Line packet 35 separates.Heat when engaging as a result, is more difficult for delivery to winding wire 30.In addition, winding wire can only be wrapped in than leading
Radially inner side is leaned in the armstand portion 52 of logical plate 50.In this regard, by the way that the outer peripheral surface than iron core 20 is arranged in the protrusion of conduction panel terminal 53
By the position of radial outside, so that the relatively radial position in armstand portion 52 becomes and the same journey in the position of the outer peripheral surface of iron core 20
Degree, the space (radical length) that can wind winding wire 30 broadens.In short, the diameter of the extended portion 51b due to planar portions 51
Width to the same degree of radical length of length and teeth portion 22, the winding wire 30 so as to wind in iron core 20 is (radial long
Degree) it not will receive the limitation of conduction panel 50.
In addition, the length direction length before and after the welding of conduction panel terminal 53 can change, and still, before and after welding,
It is preferred that conduction panel terminal 53 to be protruded to the position for being arranged in and leaning on radial outside than the outer peripheral surface of iron core 20.In addition, as shown in Figure 1,
In the state that rotor 3 is assembled in stator 2, conduction panel terminal 53 configures the space 2C in shell 2A.At this moment, conduction panel end
Son 53 is non-contact with the inner peripheral surface of shell 2A.In other words, conduction panel 50 is set as, in the state that rotor 3 is assembled in stator 2
(shape i.e. after welding), the not shape as the inner circumferential face contact with shell 2A of conduction panel 50.
In the conduction panel 50 of present embodiment, it is wound with winding wire 30 together with iron core 20, therefore, conduction panel 50 is set as
It insulate with winding wire 30.Specifically, as shown in Fig. 2, Fig. 4 and Fig. 5, in the face (iron towards shaft front end side of conduction panel 50
The face of 20 opposite side of core), it is configured with insulator 60 in a contact fashion.Insulator 60 is the shape with rotational symmetry three times
Insulating part.The insulator 60 of present embodiment include be positioned in the face of insulating layer opposite side of planar portions 51 insulation it is flat
Face 61；The insulation armstand portion 62 extended with the medial surface (towards the face of radially inner side) along armstand portion 52.Present embodiment
Insulator 60 formed by the higher material of heat-resisting rank.
Insulating planar section 61 includes compared with the annulus 51a of the planar portions 51 of conduction panel 50 radial and circumferential big
The annulus of one circle；With three extended portions being radially extended from annulus to radial outside.In addition, insulation is vertical
Arm 62 is formed as, compared with the armstand portion 52 of conduction panel 50 in the circumferential it is big one circle shape, axial length be formed as from
The planar portions 51 of conduction panel 50 arrive the length of conduction panel terminal 53.Thus, it is ensured that exhausted between conduction panel 50 and winding wire 30
Edge.Also, insulation armstand portion 62, which is erect, to be arranged between the conduction panel terminal 53 of conduction panel 50 and coiling packet 35.It is sharp as a result,
The transmitting of heat when engagement has been cut off with insulator 60.In other words, insulator 60 is also functioned as thermal insulation board.
[constructions of 2. interconnecting pieces]
Then, for the construction (connecting structure) of the interconnecting piece between conduction panel terminal 53 and winding wire 30, illustrate on one side
The concrete shape of conduction panel terminal 53 is illustrated together on one side.In Fig. 6 (a) and be (b) to be exaggerated showing for conduction panel terminal 53
It is intended to, before (a) is welding, (b) is shape after welding.In addition, these figures are from axial direction (the plate thickness side of conduction panel terminal 53
To) observation conduction panel terminal 53 figure.In present embodiment, the commutator terminal 42b connecting with one end of winding wire 30 is formed
Shape identical with conduction panel terminal 53, and there is function identical with conduction panel terminal 53.Therefore, for commutator terminal
The construction of interconnecting piece between 42b and winding wire 30 is simply illustrated after the explanation of conduction panel terminal 53.
In Fig. 6 shown in (a), the conduction panel terminal 53 before welding includes the base end side positioned at length direction (radial direction)
Fastener 53a；Fusing department 53b positioned at front end side；With the wide width part 53c (zoning portion) being disposed there between.
In this connecting structure, it is all by winding that fastener 53a and fusing department 53b, which have mutually the same width and thickness,
Line 30 winds a few position.But that be fused is fusing department 53b, the winding wire 30 at fastener 53a ties up state
It does not change before and after welding.That is, being wrapped in winding wire 30 (hereinafter referred to as " the second winding wire portion 32 ") quilt of fusing department 53b
Be set as the thermal bonding portion with 53 thermal bonding of conduction panel terminal, be wrapped in fastener 53a winding wire 30 (hereinafter referred to as " and first around
Group line portion 31 ") it is set as the not non-thermal joint portion with 53 thermal bonding of conduction panel terminal.In addition, the first winding wire portion 31 (is tied up
Portion) it is to be set across the connecting line portion 33 between main winding portion 34 in the state of working tension (aftermentioned connection tension F1)
The a part for the winding wire 30 set, the second winding wire portion 32 are one of the winding wire 30 being continuously arranged with the first winding wire portion 31
Point.That is, connecting line portion 33 is to be tensioned setting and the continuous winding in the other end with the first winding wire portion 31 from main winding portion 34
A part of line 30.
In fastener 53a, (namely batches and open with the tension in the main winding portion 34 for being wrapped in iron core 20 via having acted on
Power) connecting line portion 33 in the state of roughly the same tension (connection tension F1), and (namely hooked with defined tension
Power) by winding wire 30 wind a few.Fastener 53a, which has, is locked on conduction panel terminal 53 for winding wire 30 before and after welding
Function.In addition, in fusing department 53b, it is continuous with the tension roughly the same with the first winding wire portion 31 and the first winding wire portion 31
Winding wire 30 is wound a few by ground.Fusing department 53b is to melt together in welding with winding wire 30, and generate in Fig. 6 shown in (b)
The part of such molten ball 55 has by the way that conduction panel terminal 53 and winding wire 30 are carried out deposition the function being electrically connected
Energy.
Wide width part 53c is and fastener 53a and melting between fastener 53a and fusing department 53b and by their zonings
The position that portion 53b is formed compared to broadening (in such a way that width broadens).That is, wide width part 53c and fastener 53a and fusing department
53b is compared, and cross-sectional area (sectional area cut off on direction orthogonal to the longitudinal direction) is big.Wide width part 53c and conducting as a result,
Other position 53a, 53b in plate terminal 53 are compared, and thermal capacity is big, therefore, base end side are being leaned on than fusing department 53b, as tool
Have and is difficult to the melting difficulty portion of the property melted than fusing department 53b and functions.
Be elliptical shape from the shape of end on observation for the wide width part 53c of present embodiment, thickness be set as with
Fastener 53a and fusing department 53b are identical.It is cross shape when the global shape of conduction panel terminal 53 is from end on observation.In addition, wide
Width portion 53c can also be formed as rectangular-shaped, oval shape, triangle etc..Winding wire 30 not wide width part 53c wind but with
Sideling the mode across wide width part 53c is set.
The position of melting speed when wide width part 53c (melting difficulty portion) is for reducing welding, makes to conduction panel terminal
53 postpone from the propulsion of the molten ball 55 when the progress welding of front end side.In other words, molten ball 55 is limited in wide width part 53c
It promotes (slack-off), therefore, if terminating weld job (during molten ball 55 is present in wide width part 53c) during this period,
Fastener 53a will not melt, and winding wire 30 is kept relative to the locking state of conduction panel terminal 53.In short, this connecting structure
In, for conduction panel terminal 53, winding wire 30 is wrapped in both fastener 53a and fusing department 53b, only to make fastener 53a
And wide width part 53c is arranged in the mode that the latter in fusing department 53b melts, so that winding wire 30 when preventing welding is disconnected
Line.In this way, wide width part 53c has when carrying out welding from the side fusing department 53b so that molten ball 55 was not promoted to fastener 53a
Mode is limited the function of (blocking).
The generation mechanism of broken string when (a), (b) are to welding in Fig. 7 is illustrated.In (a) of Fig. 7, (b), to table
Show the figure in the state that the terminal 5 after the simplifying shapes of above-mentioned conduction panel terminal 53 is wound with to winding wire 6, merging is shown
The figure of the relationship (curve graph) of power relative to weld length, wherein (a) is the shape before welding, be (b) shape after welding
Shape.Terminal 5 is to be formed of one material for flat terminal, has same cross sectional shape.Winding wire 6 and above-mentioned winding
Line 30 is corresponding, comprising: in the first winding wire portion 6a (tie part) that the base end side of terminal 5 is wound；With the first winding wire portion 6a
The second winding wire portion 6b that the front end side in terminal 5 being continuously arranged is wound；With from wind state be arranged main winding portion 6d
Tensioning setting and with the continuous connecting line portion 6c in the end (the other end) of the first winding wire portion 6a.
Winding wire 6 (i.e. the first winding wire portion 6a and the second winding wire portion that will be wound in terminal 5 are acted in connecting line portion 6c
The power (hereinafter referred to as " connection tension F1 ") 6b) pullled to the main winding portion side 6d.Connecting tension F1 is by winding wire 6 defined
Part (such as rotor core) is wound with defined tension (namely coiling tension) and the power that generates, is and coiling tension
Equivalent power or slightly strong power.
On the other hand, the state of the winding of terminal 5 is maintained at not in the first winding wire portion 6a and the second winding wire portion 6b effect
Become and stops power in this (keeping the power of winding state, hereinafter referred to as " support force F2 ").Support force F2 is equivalent to winding wire 6
Frictional force and winding wire 6 rigid power power after being added.The frictional force of winding wire 6 by by winding wire 6 terminal 5 wind when
Tension (namely hook tension), the rugosity of winding wire 6 and determine that it is big for winding circle number of winding wire 6 of terminal 5 etc.
It is small.In addition, the rigid power of winding wire 6 determines its size by the rigidity of winding wire 6.In addition, for the branch in (a) of Fig. 7, (b)
For easy understanding support force F2 is resistant to the power of connection tension F1, to be oppositely directed to (figure with the arrow of connection tension F1 is indicated
It is middle towards a left side) arrow indicate.
In Fig. 7 shown in (a), under the state (weld length 0) before welding, in the winding that terminal 5 is wound and is engaged
Line 6 will not be loose and static, and therefore, the size relation connected between tension F1 and support force F2 is " F1 < as illustrated on the graph
F2".If carrying out welding from the front end side of terminal 5 in this state, winding wire 6 melts together with terminal 5, therefore, with molten
Propulsion (weld length is more elongated) support force F2 is met to gradually become smaller.Moreover, if welding is advanced to some position, (single-point is drawn in figure
The boundary line of line), then the size relation connected between tension F1 and support force F2 reverses, and winding wire 6 breaks.In addition, right
In the broken string mechanism, as long as the thermal bonding that winding wire 6 can melt, being not limited to welding can all be generated.For example, will be based on copper
In the case that the winding wire 6 and terminal 5 of ingredient are welded, it is possible to produce referred to as copper fuses into " wedging " of the scolding tin of fusing
Phenomenon and make winding wire 6 melt, therefore, as described above, it is possible to which winding wire 6 breaks.
Therefore, in order not to allow winding wire 6 to break, what the size relation between connection tension F1 and support force F2 did not reversed
(leaning on front end side than boundary line) in range A terminates welding.For example, as shown in (b) in Fig. 7, if making welding in range A
Terminate, then the relationship between connection tension F1 and the support force F2 after welding is still kept the latter (F2 bigger than the former
> F1's) state.Therefore, in the one end (hereinafter referred to as " root of the winding wire 6 positioned at the boundary between molten ball 5y
6e "), become the state that connection tension F1 is not acted on, does not apply the stress generated due to coiling tension.Thus, it is therefore prevented that due to
Broken string at root 6e caused by aging.In addition, even if root 6e is also connection in the case where the connecting structure applies and vibrates
Therefore the state that tension F1 is not acted on also prevents breaking caused by due to vibration.
Therefore, in advance in the part of the base end side setting not welding of terminal 5, so that only in the winding wire for being wound in the part
Part generates the support force F2 bigger than connection tension F1.Such as, it is contemplated that range (is compared into the front end side of terminal 5 in advance
A small range) it is set as carrying out the part (welding area) of welding, base end side being set as part (the non-welding area without welding
Domain), the support force F2 bigger than connection tension F1 is only generated in the winding wire part for being wound in non-welding area, is arranged by this method
The connecting structure that winding wire 6 is wound.In the case where the connecting structure, if by the non-welding area of terminal 5 with than even
The winding wire part for connecing the big support force F2 winding of tension F1 is set as the first winding wire portion 6a, the winding that will be wound in welding area
Line part is set as the second winding wire portion 6b, then the first winding wire portion 6a becomes the part (non-thermal joint portion) not being thermally bonded, the
Two winding wire portion 6b become the part (thermal bonding portion) being thermally bonded.
Alternatively, it is also possible to consider to be set as, setting has than welding area infusibility between welding area and non-welding area
Property region connecting structure.That is, as shown in (a) in Fig. 8, the part of the base end side in range A is arranged and range A
Other interior regions are compared to region B with large heat capacity (melting difficult region B).In the case where being the connecting structure, in Fig. 8
(b) shown in, if promoting welding from the front end side of terminal 5, speed is melted since the time point for entering melting difficult region B
Therefore degree decline can make to lengthen the time (weld time tw) needed for region B fusing.It is, being provided with
In the connecting structure for melting difficult region B, terminate welding when melting speed decline, therefore non-welding area can not be made
Domain fusing, can prevent the broken string of the winding wire 6 when welding.Also, the finish time for strictly setting welding is not needed, herein
On the basis of, the position of molten ball can be located in the B of region, thus, it is also possible to prevent the positional shift of molten ball.
More than, the connecting structure for considering broken string mechanism is illustrated, still, above-mentioned conduction panel terminal 53 with around
Group line 30 between interconnecting piece by become such connecting structure in a manner of, and be provided with fastener 53a, fusing department 53b and
Wide width part 53c, and it is wound winding wire 30.That is, fastener 53a, fusing department 53b and wide width part 53c be respectively set to it is upper
Non- welding area, welding area and the melting difficult region stated are corresponding.Moreover, the first winding wire portion 31 in winding wire 30 with
The power bigger than the power (with the comparable power of above-mentioned connection tension F1) for pullling in connecting line portion 33 to 34 side of main winding portion (with it is upper
The comparable power of support force F2 stated) it is wound in fastener 53a.
Moreover, also in a manner of the size relation (F2 > F1) of retentivity, to terminate welding after the completion of welding.As a result, such as
In Fig. 6 shown in (b), the boundary (being connect with the molten ball 55 generated by fusing department 53b) that is located between molten ball 55 around
The root 36 (one end in the first winding wire portion 31) of group line 30 becomes the state that does not act on of connection tension F1, do not apply due to
The stress that coiling tension generates.Therefore, as described above, the broken string at the root 36 due to caused by aging can be prevented.In addition,
Even if in the case that the interconnecting piece between conduction panel terminal 53 and winding wire 30 is applied with vibration, root 36 is also connection tension
Therefore the state that F1 is not acted on also prevents breaking caused by due to vibration.
In addition, being played in a manner of limiting the propulsion of molten ball 55 when carrying out welding from the front end side of conduction panel terminal 53
The wide width part 53c of function goes out fastener 53a and fusing department 53b with zoning after fusing and support force F2 ratio is kept to connect
The function of tension F1 big state.That is, wide width part 53c in such a way that molten ball 55 when making in welding does not enter fastener 53a into
Row limitation therefore, because reliably separating fastener 53a and fusing department 53b (molten ball 55), therefore reliably keeps F2 >
The state of F1.It is not acted in root 36 even if as a result, after fusing, also becoming in the connection tension F1 that connecting line portion 33 acts on
State.
In addition, the interconnecting piece between commutator terminal 42b and winding wire 30 is also same as conduction panel terminal 53, examined with becoming
The mode for having considered the connecting structure of broken string mechanism, is provided with fastener 42c, fusing department 42d and wide width part 42e, and be wound with
Winding wire 30.Each of fastener 42c, fusing department 42d and wide width part 42e of commutator terminal 42b be set as with it is above-mentioned non-
Welding area, welding area and melting difficult region are corresponding.That is, that be soldered is the fusing department 42d, fastener 42c of front end side
It is not fused.In addition, wide width part 42e has the function as melting difficulty portion and so that molten ball is not promoted to fastener 42c
Mode limited the function of (blocking).
In addition, commutator terminal 42b base end side wind winding wire part (the first winding wire portion, tie part) with than
The big power of the power (with the above-mentioned comparable power of connection tension F1) that connecting line portion is pullled to 34 side of main winding portion is (with above-mentioned branch
The comparable power of support force F2) it is wound in fastener 42c.Moreover, with the also size relation (F2 > F1) of retentivity after the completion of welding
Mode, terminate welding.Even if as a result, in commutator terminal 42b, be located between molten ball boundary (with by fusing department
42d generate molten ball connection) winding wire 30 root (one end in the first winding wire portion), become connection tension F1 do not make
State does not apply the stress generated due to coiling tension.
In addition, the scolding tin 45 (brazing metal) substantially melted becomes molten ball in the case where being welding (soldering), but
It is that a part of fusing department 42d can also fuse into and become molten ball.It is, molten ball is thermally bonded at least fusing department
Shi Shengcheng's.In addition, wide width part 42e is same as above-mentioned wide width part 53c, have after fusing by fastener 42c and fusing department
The function of 42d progress zoning and the state for keeping support force F2 bigger than connection tension F1, in addition, also functioning to prevents from engaging
When molten ball the effect that shifts of position.
[forming method, the manufacturing methods of rotor of 3. interconnecting pieces]
The forming method for including above-mentioned interconnecting piece, rotor 3 manufacturing method is illustrated using Fig. 9.In the system
It makes in method, comprising: the molding procedure (step S10) of conduction panel 50；To the assembling procedure (step S20) of shaft 10；Winding around
The winding working procedure (step S30) of group line 30；With the bonding process (step S40) for engaging the both ends of winding wire 30, press
The sequence implements four processes.It for these processes, can be automatically carried out, can also be carried out manually by device.In addition, these
In four processes, molding procedure and winding working procedure, bonding process are also the forming method of interconnecting piece.In addition, for rotor 3
Part (shaft 10, iron core 20 etc.), other than conduction panel 50, is prepared in advance.
In molding procedure, conduction panel 50 is shaped to by above-mentioned completion shape (regulation shape) by punch process.That is, at
Type is with the conduction panel 50 of lower component: forming the planar portions 51 of electroneutral point；From the end of the radial outside of planar portions 51
Three armstand portions 52 being extended to the direction intersected with planar portions 51；It is convex to radial outside with the end from each armstand portion 52
The conduction panel terminal 53 being arranged out.At this moment, the height in the armstand portion 52 of conduction panel 50 is set to, by the plane of conduction panel 50
Portion 51 is placed in the state of the end face of iron core 20, and conduction panel terminal 53 is located at the coiling packet 35 than winding wire 30 by shaft 10
The position of front end side, and it is located at the position that 20 side of iron core is leaned on than commutator terminal 42b.In present embodiment, with conduction panel terminal
The mode of the middle section of 53 middle part 70 between coiling packet 35 and commutator terminal 42b, sets armstand portion 52
Highly.
In addition, the conduction panel terminal 53 of conduction panel 50 is formed to have above-mentioned fastener 53a, fusing department 53b and wide cut
The completion shape of portion 53c (zoning portion, melting difficulty portion).That is, becoming card in molding procedure with the base end side of conduction panel terminal 53
Stop 53a, front end side become fusing department 53b, become than fusing department 53b by the position of base end side and are difficult to melt than fusing department 53b
Wide width part 53c mode, conduction panel terminal 53 is formed.In addition, in present embodiment, the conduction panel terminal 53 of conduction panel 50
It is formed by bending in a manner of extending in the assembled state to the direction orthogonal with the axial direction of shaft 10.Also, with conduction panel end
Son 53 is prominent by radial outside to the outer peripheral surface than iron core 20 before and after welding, and after fusing with the inner peripheral surface of shell 2A is non-connects
The mode of touching forms conduction panel 50.
In assembling procedure, by iron core 20, pass through the molding conduction panel 50 of molding procedure, insulator 60 and commutator 40 etc. zero
Part is assembled to shaft 10.
In winding working procedure, winding wire 30 setting: is set as main winding portion 34 made of winding state；Winding wire 30 is wound
The the first winding wire portion 31 made of fastener 42c, 53a；Continuously winding wire 30 is wrapped in the first winding wire portion 31 molten
Melt the second winding wire portion 32 made of portion 42d, 53b；And the company set up between main winding portion 34 and the first winding wire portion 31
Wire connecting portion 33.That is, the first winding wire portion 31 is arranged to, across connecting line portion 33 between main winding portion 34.
In the winding working procedure of present embodiment, by one end of winding wire 30 commutator 40 three commutator terminals
One in 42b is wound come after the first wound portion 31 and the second winding wire portion 32 is arranged, by having acted on regulation tension (even
Meet tension F1) connecting line portion 33 under state, one in three teeth portion 22 of iron core 20 is wound with defined the number of turns
Main winding portion 34 is arranged.At this moment, the conduction panel terminal 53 of conduction panel 50 is configured in the middle section of middle part 70, therefore,
Ensure the winding workability of the winding wire 30 relative to iron core 20.
In turn, by the other end of the winding wire 30 extended from main winding portion 34 conduction panel 50 three conduction panel terminals 53
In corresponding one be wound (hook), by connecting line portion 33, the first winding wire portion 31 and the second winding wire portion are set
32.At this moment, (the first winding wire of winding wire 30 is made with each fastener 42c, 53a in commutator terminal 42b, conduction panel terminal 53
Portion 31) power (support force F2) that stops is bigger than the power (connection tension F1) for pullling in connecting line portion 33 to 34 side of main winding portion
Mode, by winding wire 30 commutator terminal 42b, conduction panel terminal 53 each winding a few.That is, with by winding wire 30
The mode that winding wire 30 will not be loose and static in the state that each fastener 42c, 53a are tied up winds winding wire 30.By the work
Industry carries out in three places.
In bonding process, one end of winding wire 30 is engaged by welding with commutator terminal 42b, and by winding wire 30
The other end engaged with conduction panel terminal 53 by TIG welding.At this moment, fusing department 42d, 53b of two-terminal 42b, 53 are melted
And with 32 thermal bonding of the second winding wire portion.The conduction panel terminal 53 of present embodiment is configured in the middle section of middle part 70,
And it protrudes and is arranged towards radial outside than the periphery of iron core 20, therefore, heat when engagement is difficult to transmit to winding wire 30.
In addition, implementing bonding process after winding working procedure in this manufacturing method (forming method), but it is also possible to twining
Bonding process is carried out parallel around process.That is, can also engage one end of winding wire 30 in commutator terminal 42b, connect by heat
After conjunction (welding) is engaged the one end, winding wire 30 is wound in iron core 20, and the other end is engaged and carries out heat and is connect
It closes (TIG welding), thus manufactures rotor 3.
[4. effect]
(1) in the construction of above-mentioned interconnecting piece, the root 36 for the winding wire 30 connecting with molten ball 55 becomes connection
Therefore the state that power F1 is not acted on does not apply the stress generated due to coiling tension in the root 36.Therefore, can prevent by
Broken string at the root 36 caused by aging.In addition, even if the interconnecting piece between conduction panel terminal 53 and winding wire 30 applies
In the case where vibration, root 36 becomes the free state that connection tension F1 is not acted on, thus, it is also possible to prevent from drawing due to vibration
The broken string risen.
In addition, by opening the support force F2 ratio connection for acting on the first winding wire portion 31 (tie part) after thermal bonding
Power F1 is big, so as to be set as the state that connection tension F1 is not acted at the root 36 in the first winding wire portion 31.That is, can
As root 36 do not apply due to coiling tension generate stress state, can prevent due to caused by aging break
Line and due to vibrate caused by broken string.In addition, can also obtain identical effect in commutator terminal 42b.
(2) it is provided in above-mentioned conduction panel terminal 53 and is used as fastener 53a and fusing department 53b progress zoning and protects
Hold the wide width part 53c in the zoning portion of the support force F2 state bigger than connection tension F1.Therefore, can be configured to, even if in welding
Afterwards, it is not also acted in root 36 in the connection tension F1 that connecting line portion 33 acts on.Thereby, it is possible to prevent from drawing due to aging and vibration
The broken string at root 36 risen.
In addition, the zoning portion is sent out in a manner of limiting the propulsion of the molten ball 55 generated by fusing department 53b in thermal bonding
Wave function.In other words, molten ball 55 be in thermal bonding in a manner of less than Dacca stop 53a by zoning portion limitation (blocking) and
It is formed.In this way, by the way that the zoning portion limit with the propulsion of molten ball 55 is set in advance in conduction panel terminal 53,
So as to make that conduction panel terminal 53 and winding wire 30 are carried out thermal bonding by the position melting of front end side than zoning portion.
Thereby, it is possible to be configured at least make in the state in the first winding wire portion 31 that fastener 53a is wound before thermal bonding
It does not change afterwards, therefore, if the first winding is arranged in such a way that root 36 does not apply connection tension F1 before thermal bonding
Line portion 31, even if can also be set as not applying the state of connection tension F1 in root 36 then after thermal bonding.Therefore, Neng Goufang
Only at root 36 due to caused by aging broken string and due to vibrate caused by broken string.In addition, also can in commutator terminal 42b
Obtain identical effect.
(3) in the construction of above-mentioned interconnecting piece, in the fastener of terminal (commutator terminal 42b, conduction panel terminal 53)
42c, 53a, be compared to for connecting line portion 33 connection tension F1 it is big support force F2 winding winding wire 30 made of first around
Group line portion 31 is set as non-thermal joint portion.On the other hand, it is formed in fusing department 42d, 53b winding winding wire 30 of terminal 42b, 53
The second winding wire portion 32 be set as thermal bonding portion.That is, what is be thermally bonded is the second winding wire portion 32, at fastener 42c, 53a
The state (state in the first winding wire portion 31) of tying up of winding wire 30 do not change before and after thermal bonding.
According to such construction, when thermal bonding between terminal 42b, 53 and winding wire 30 (when being electrically connected), Neng Goufang
The only broken string of winding wire 30.That is, the undesirable condition of broken string can be prevented and steadily carry out thermal bonding, therefore it can be improved production
Property, and also can be improved the reliability and quality of product.
In addition, can equally be prevented according to the above-mentioned forming method of the winding working procedure comprising winding winding wire 30 in this way
The undesirable condition of broken string and steadily carry out thermal bonding, therefore, can be improved productivity, and also can be improved the reliable of product
Property and quality.Also, according to above-mentioned forming method, since the state for keeping support force F2 bigger than connection tension F1 is unchangeably tied
Therefore beam melting can be set as not acting on the state of connection tension F1 in root 36.The root after welding can be also prevented as a result,
Broken string at portion 36.
(4) in addition, in the construction of above-mentioned interconnecting piece, due to leaning on base than fusing department 42d, 53b in terminal 42b, 53
End side setting is difficult to the melting difficulty portion (wide width part 42e, 53c) melted, therefore, when thermal bonding between winding wire 30,
It can make fusing department 42d, 53b melting that terminal 42b, 53 and winding wire 30 are carried out thermal bonding.In other words, can make with
The state of tying up in the first winding wire portion 31 being arranged between main winding portion 34 across connecting line portion 33 is not sent out before and after thermal bonding
Changing, therefore, the broken string of the winding wire 30 when can prevent thermal bonding (when electrical connection).That is, the bad of broken string can be prevented
Situation and steadily carry out thermal bonding, therefore can be improved productivity, and also can be improved the reliability and quality of product.
In addition, according to the above-mentioned formation side comprising terminal 42b, 53 to be shaped to such molding procedure for completing shape
Method can equally prevent the undesirable condition of broken string and steadily carry out thermal bonding, therefore can be improved productivity, and also can
Improve the reliability and quality of product.Also, according to above-mentioned forming method, the first winding wire can be made using melting difficulty portion
The state of tying up in portion 31 does not change before and after thermal bonding, therefore, if being set as making the first winding wire portion 31 before thermal bonding
Support force F2 than the big state of connection tension F1, even if being also able to maintain the state of F2 > F1 then after thermal bonding.That is, by
It therefore can be prevented at the root 36 due to caused by aging in the state that can be set as not acting on connection tension F1 in root 36
Broken string and due to vibrate caused by broken string.In addition, the position functioned in thermal bonding as melting difficulty portion is molten
Become zoning portion after connecing.
(5) in addition, in the construction of above-mentioned interconnecting piece, base end side is being leaned on than fusing department 42d, 53b in terminal 42b, 53
It is arranged and is difficult to the melting difficulty portion (wide width part 42e, 53c) melted than fusing department 42d, 53b.Until molten ball 55 be advanced to it is molten
Continue thermal bonding until melting difficult portion, still, in Fig. 8 shown in (b), in melting difficulty portion, the propulsion of molten ball 55 becomes
Slowly, therefore, there is no need to strictly set at the time of stop thermal bonding.It in other words, can due to being easy to control thermal bonding
Stringent time management (working condition) is not needed, workability and productivity can be further increased.In addition, due to tired in melting
The propulsion in difficult portion, molten ball 55 is slack-off and is easy to control, and therefore, can prevent the positional shift to radial molten ball 55, energy
Enough further increase the reliability of product.
(6) in addition, in the construction of above-mentioned interconnecting piece, since zoning portion is set as the cross compared with fastener 42c, 53a
Therefore the big shape of sectional area can further increase productivity simply in terminal 42b, 53 setting zoning portions.This
Outside, in present embodiment, it is big that the melting difficulty portion before becoming zoning portion is set as compared with fusing department 42d, 53b cross-sectional area
Therefore shape can further increase productivity simply in terminal 42b, 53 setting melting difficulty portions.
(7) particularly, in above-mentioned terminal 42b, 53, zoning portion is set as widening and shape compared with fastener 42c, 53a
At wide width part 42e, 53c, therefore, molding is simple, can more further increase productivity.In addition, passing through setting wide width part
42e, 53c can be improved the rigidity of terminal 42b, 53.In addition, the melting difficulty portion in present embodiment, before becoming zoning portion
(i.e. wide width part 42e, 53c) is to widen and formed compared with fusing department 42d, 53b, and therefore, molding is simple, can be more into one
Step improves productivity, and can be improved the rigidity of terminal 42b, 53.Also, the area contacted due to molten ball 55 compared with
Width, therefore can prevent molten ball 55 from falling off, the reliability and quality of product can be further increased.
(8) it even in addition, apply the rotor 3 and motor 1 of the construction of above-mentioned interconnecting piece, can also prevent winding
Broken string when 30 thermal bonding of line, and can also prevent the broken string after thermal bonding, therefore, regardless of the size of rotor 3 and motor 1 why
Sample can improve productivity.In addition, also can be improved the reliability and quality of rotor 3 and motor 1.
[5. variation]
The shape of above-mentioned conduction panel terminal 53 is an example, but is not limited to above-mentioned shape.In Figure 10 (a)~
(c), the variation of conduction panel terminal 53 is illustrated.
[5-1. variation related with terminal shape]
In Figure 10 shown in (a), the fastener 53a ' of conduction panel terminal 53R can also be in the front end of fastener 53a '
The position (part adjacent with wide width part 53c) of side has recess portion 56a recessed in such a way that width narrows.If it is such shape
The conduction panel terminal 53R of shape is easy to be maintained at the bundle of the winding wire 30 (the first winding wire portion 31, tie part) of recess portion 56a winding
Bundle state.That is, since the frictional force between winding wire 30 and conduction panel terminal 53R becomes larger, though make to hook tension with
In the identical situation of above-mentioned embodiment, compared with the shape shown in (a) in Fig. 6, also support force F2 can be made to become larger.Cause
This, the broken string of the winding wire 30 when can prevent thermal bonding, and can also prevent the broken string at the root 36 after thermal bonding.
In addition, the fusing department 53b ' of conduction panel terminal 53S can also be set as rectangular portion 57 as shown in (b) in Figure 10
The shape being combined into the second wide width part 58.That is, for the fusing department 53b of conduction panel terminal 53 shown in (a) in Fig. 6,
Other wide width part 58 can be formed in front end side.It if it is the conduction panel terminal 53S of such shape, such as is being by will be around
Group line 30 is pullled in the case where being cut off such constitute, in the cutting, melting to the front end side of conduction panel terminal 53S
The winding wire 30 (the second winding wire portion 32) for melting the winding of rectangular portion 57 of portion 53b ' is possible to from the front end side of conduction panel terminal 53S
It is detached from, but it is possible to prevent the disengaging using the second wide width part 58.
Alternatively, it is also possible to be set as terminal shape made of the shape zoarium by above-mentioned two conduction panel terminals 53R, 53S,
In Figure 10 shown in (c), the fusing department 53b " of conduction panel terminal 53T can also be set as the second recess portion 56b and the second wide cut
The shape that portion 58 is combined into.If it is the conduction panel terminal 53T of such shape, it is easy to be maintained at recess portion 56a, the second recess portion
The winding wire 30 (the first winding wire portion 31, the second winding wire portion 32) of each winding of 56b ties up state, also, also can
It is prevented using the second wide width part 58 in the same as described above of the second recess portion 56b winding wire 30 (the second winding wire portion 32) wound
It is detached from.
In addition, in the above-described embodiment, illustrating commutator terminal 42b, conduction panel terminal 53 all has as molten
The case where melting wide width part 42e, the 53c in difficult portion, still, melting difficulty portion are not limited to above-mentioned structure.In Figure 11 (a)~
(f) variation in melting difficulty portion is illustrated.In addition, in these figures, being set as the shape that above-mentioned conduction panel terminal 53 is equal
The variation of simplified terminal 5 (terminal 5 shown in (a) i.e. in Fig. 7, Fig. 8) is illustrated.
In Figure 11 in terminal 5W shown in (a), melting difficulty portion (zoning portion) is set as with the wall thickness thicker than fusing department 5b
The wall thickness 5d of formation.Wall thickness 5d is set in region B shown in (a) in fig. 8.In addition, in the figure, due to fastener 5a
It is formed with fusing department 5b with identical thickness, therefore, only by wall thickness 5d (melting difficulty portion) thick arm, cross-sectional area is than other
5a, 5b are big in portion.Even the terminal 5W of such shape, in the wall thickness 5d for leaning on base end side than fusing department 5b, molten ball is pushed away
Into slack-off, therefore, function and effect identical with above-mentioned embodiment can be obtained.In addition, if melting difficulty portion is set as
Wall thickness 5d, then it is same as above-mentioned wide width part 53c etc., it also can be improved the rigidity of terminal 5.In addition, if it is terminal 5W,
The wall thickness 5d then functioned as melting difficulty portion is functioned as zoning portion after fusing, therefore, can be obtained
To with the same effect such as above-mentioned wide width part 53c.
In Figure 11 in terminal 5X shown in (b), it is arranged using the notch section 5f in fusing department 5b ' formation in fastener 5a and is melted
Melt difficult portion (zoning portion).That is, reduce cross-sectional area compared with melting difficulty portion (fastener 5a) in fusing department 5b ' setting
Notch section 5f.As a result, since the cross-sectional area of fusing department 5b ' becomes smaller, can relatively it make than fusing department 5b ' by cardinal extremity
The cross-sectional area of the fastener 5a of side becomes larger, and fastener 5a can be made to function as melting difficulty portion.
Notch section 5f is for example by by the general central portion of the width direction of fusing department 5b ', in the side that thickness direction penetrates through
Formula carries out notch from front end side and forms (recessed).Double dot dash line in (b) of Figure 11 indicates region B shown in (a) in Fig. 8
The boundary line of front end side.By notch section 5f as shown in (b) in Figure 11, setting is not weighed with region B shown in (a) in Fig. 8
Folded position.Even the terminal 5X of such structure, since at the position for leaning on base end side than fusing department 5b ', molten ball is pushed away
Into slack-off, therefore function and effect same as above-mentioned embodiment can be obtained.In addition, being lacked simply by being formed in terminal 5
Oral area 5f, it will be able to make to function by the fastener 5a of base end side as melting difficulty portion than fusing department 5b ', therefore, at
Type is simple, can be improved productivity.In addition, in the case where being terminal 5X, due to a part of the front end side of fastener 5a
It is functioned as melting difficulty portion, thus, there is no the specific boundaries between fastener 5a and zoning portion.
In Figure 11 in terminal 5Y shown in (c), melting difficulty portion (zoning portion) is using by cutting off one for fusing department 5b "
The stage portion 5g partially formed is oppositely disposed.That is, so that the cross-sectional area of fusing department 5b " is become smaller due to stage portion 5g, because
This, relatively, than fusing department 5b " leans on the cross-sectional area at the position of base end side (fastener 5a) to become larger.So that the thickness of fusing department 5b "
It spends the mode smaller than fastener 5a and forms stage portion 5g by cutting off a part.In addition, stage portion 5g also with (b) in Figure 11
Notch section 5f is same, is arranged on and the nonoverlapping position region B shown in (a) in Fig. 8.Even the terminal of such structure
5Y, since at the position for leaning on base end side than fusing department 5b ", the propulsion of molten ball is slack-off, therefore, can obtain and above-mentioned implementation
The same function and effect of mode.In addition, in the case where being terminal 5Y, also same as terminal 5X, the front end side of fastener 5a
A part as melt difficulty portion and function, thus, there is no the specific boundaries between fastener 5a and zoning portion.
In Figure 11 in terminal 5Z, 5Z ', 5Z " shown in (d)~(f), melting difficulty portion (zoning portion) is all set as heterogeneous
Portion 5e, the heterogeneous portion 5e are by compared with the material of fusing department 5b there is the material for the property for being difficult to melt to be formed.Heterogeneous portion 5e quilt
It is arranged in region B shown in (a) in fig. 8.In addition, in these figures, since fastener 5a and fusing department 5b is by identical material
Material is formed, and therefore, only heterogeneous portion 5e (melting difficulty portion, zoning portion) is formed by other material, compared with other 5a, 5b
It is difficult to melt.As the material of heterogeneous portion 5e, higher melting-point material (such as iron, tungsten, molybdenum can be enumerated compared with fusing department 5b
Deng) or compared with fusing department 5b per unit volume the biggish material of thermal capacity.
In Figure 11 (d), a part of the length direction of terminal 5Z is all set to heterogeneous portion 5e.On the other hand, scheming
(e), (f) in 11, in a part of the length direction of terminal 5Z ', 5Z ", one or two sides are set as heterogeneous portion 5e.That is, end
In sub- 5Z ', 5Z ", fastener 5a and fusing department 5b are not completely separated by heterogeneous portion 5e.These terminals 5Z ', 5Z " such as are logical
It crosses to be arranged in terminal surfaces (one or two sides) and be recessed, be bonded the material different from fusing department 5b in the recess to be formed.Even if
It is terminal 5Z, 5Z ', 5Z " of these structures, in the heterogeneous portion 5e for leaning on base end side than fusing department 5b, the propulsion of molten ball is slack-off, because
This, obtains function and effect identical with above-mentioned embodiment.In addition, if melting difficulty portion is set as heterogeneous portion 5e, then root
According to the setting of the material of heterogeneous portion 5e, so as to control the propulsion of molten ball, therefore productivity can be improved.
In addition it is also possible to by shown in (a)~(f) in wide width part 42e, 53c and Figure 11 by above-mentioned embodiment
Wall thickness 5d, heterogeneous portion 5e, notch section 5f, stage portion 5g etc. are combined to constitute melting difficulty portion (zoning portion).For molten
Melt in difficult portion (zoning portion), at least than fusing department be difficult to the property melted having than fusing department by the position of base end side,
It is also possible to the structure comprising above-mentioned structure (or structure other than these).
[5-2. variation related with winding state and material]
The binding method (winding state) of winding wire 30 relative to fastener 53a, 53a ' is not limited to above-mentioned example.?
This, (a) and (b) shows an example in Figure 12.In addition, in conduction panel terminal 53V shown in these figures and Figure 10 (a) conduction panel
Terminal 53R is compared, and the lengthwise dimension of fastener 53a " is smaller.In addition, the length direction and width direction of fusing department 53d
Two sizes are also smaller, become the shape that forward end expands.
It, can also be so that company under connection tension F1 active state winding state shown in such as (a) in Figure 12 and (b)
The one end 33a and the other end 33b of wire connecting portion 33 are located at mutually the same side (figure in the width direction of conduction panel terminal 53V
In 12 (a) be downside) mode, from main winding portion 34 to fastener 53a " be extended winding wire 30.That is, can also be with not horizontal
Connecting line portion 33 is arranged in the mode of across conduction panel terminal 53V.
In Figure 12 (a) and (b) shown in example, the one end 33a of 31 side of the first winding wire portion in connecting line portion 33 exists
The recess portion 56a of the other end side 33b is hooked, and is connected in the first winding wire portion 31 that fastener 53a " is wound.Relative to leading
The position in the connecting line portion 33 of logical plate terminal 53V be main winding portion 34, bind round towards end 4 sides 35 vertex of coiling packet side.
In addition it is also possible to be that the one end 33a in connecting line portion 33 is abutted with the edge in the armstand portion 52 of the other end side 33b and is arranged,
And it is connected in the first winding wire portion 31 that fastener 53a " is wound.
In this way, by configuring both ends 33a, the 33b in connecting line portion 33 in the same side, so as to steadily ensure to connect
The contactless state in each of wire connecting portion 33 and conduction panel terminal 53V and main winding portion 34.If by the one end in connecting line portion
Portion and the other end are relative to conduction panel terminal arrangement in the case where reciprocal side, it is possible to due to connecting line portion
Axial position (height and position), and make all discontiguous length (non-contact long in connecting line portion and conduction panel terminal and main winding portion
Degree) it is elongated, it is also possible to become especially short.In contrast, conduction panel terminal 53V shown in if it is (a) in Figure 12 and (b),
It is unrelated with axial position (height and position) in connecting line portion 33, it can steadily ensure certain non-contact length.Therefore, can
It prevents from being stripped off the winding wire of envelope each other and layer short circuit caused by the contact between the pin hole of coiling packet 35, can be improved
Quality.
In addition, winding wire 30 winds in fastener 53a " and sideling across wide width part as (a) in Figure 12 and (b) shown
Fusing department 53d is wrapped in after 53c.That is, the last line portion 30e (front end) of winding wire 30 is located at fusing department 53d.As a result, by winding wire
30 last line portion 30e is contained in molten ball 55, therefore, can prevent the relaxation of winding wire 30.Hereinafter, will be sideling across wide cut
The part (a part in the first winding wire portion 31) of portion 53c is known as cross span portion 37.Cross span portion 37 is from positioned at wide width part 53c
The curve part 38 of length direction base end side the part of the curve part 39 of fusing department 53d is sideling reached across wide width part 53c.
The cross span portion 37 be not along 34 side of main winding portion of conduction panel terminal 53V face (on one side, hereinafter referred to as " under
Surface 53w "), but be arranged along the face (another side, hereinafter referred to as " upper surface 53u ") with lower surface 53w opposite side.That is, right
In conduction panel terminal 53V, only cross span portion 37 is arranged in upper surface 53u, is not arranged in the lower surface side 53w.It is inciting somebody to action as a result,
In the case that conduction panel terminal 53V carries out TIG welding from its front end side, the molten ball 55 generated is melted by fusing department 53d
Shown in such as (a) in Figure 13 and (b), positioned at the upper surface side 53u of conduction panel terminal 53V.
This is because, when fusing department 53d is the state of fusing (in fusion process), it is relatively more to fusing amount with being easy
Side attract property (influence of surface tension).Due to the property, liquid fusing department 53d exists to cross span portion 37
The upper surface side 53u it is close, solidified as welding terminates, thus, molten ball 55 is located at the upper surface side 53u.As a result, with melting
Ball 55 is located at the case where lower surface side 53w and compares, and the distance between molten ball 55 and connecting line portion 33 can be made to lengthen, therefore,
It is able to suppress the transmitting of heat when engagement, can be contributed to preventing from breaking.
In addition, in this variation, it is same as above-mentioned embodiment, TIG welding is used, therefore protect electric arc using gas
Burning-on method.That is, making to melt matter to make molten metal (fusing department 53d) and electric arc and atmosphere (air) partition in welding
Amount is stablized, and the non-active gas such as argon gas (protective gas) are brushed to fusing department 53d.Here, the conduction panel terminal 53V of this deformation
In, as described above, being worked hard by the configuration to cross span portion 37 (by being only arranged in upper surface 53u) makes molten ball 55
Positioned at the upper surface side 53u.It in other words, is not brushing direction and control the position of molten ball 55 using protective gas.Therefore,
It is free to the direction that setting protective gas brushes, and shield gas flow rate can be reduced.Thereby, it is possible to cost of implementation drops
It is low.
If it is not that the position in cross span portion is set as to this variation (such as being only arranged in lower face side) like that, it can also
To consider to make molten ball be located at upper surface side using protective gas.But in this case, therefore, to assure that the mobile degree of molten ball
Shield gas flow rate, on this basis, need accurately to control protective gas brushes direction.Also, when due to welding
The setting position of conduction panel terminal how much have deviation, it is therefore, also difficult even if accurately control protective gas brushes direction
So that molten ball is stably positioned in upper surface side.This variation is able to solve such problems.
If in addition, be not that the position in cross span portion is set as to this variation like that (such as only lower face side be arranged),
In order to make molten ball be located at upper surface side, such as, it may be considered that utilize the self weight of molten ball.In this case, for example, if
Welding has been carried out with the posture of the front end of conduction panel terminal upward, due to self weight, has caused molten ball to conduction panel terminal
Upper surface side, which direction movement of lower face side are unstable.Therefore, firstly, it is necessary to so that the upper surface court of conduction panel terminal
It is configured to the direction (i.e. vertical lower section) of gravity or the mode of obliquely downward.But the setting of rotor becomes unstable,
And melting unstable quality.In addition, not being the feelings for making workpiece (conduction panel terminal) but making welding electrode movement in welding
Under condition, since welding electrode is abutted with the front end side (fusing department side) of conduction panel terminal, if by conduction panel terminal with along
The mode that horizontal direction extends is configured, then the equipment size enlargement of horizontal direction.Also, in the self weight using molten ball
In the case where, in order to keep molten ball mobile using self weight, it is necessary to increase molten ball, the size of molten ball is easy to produce deviation.
This variation is also able to solve these problems.In addition it is also possible in a manner of configuring molten ball 55 in the upper surface side 53u, if
Determine the direction of welding electrode.
In Figure 12 (a) and (b) shown in conduction panel terminal 53V, cross span portion 37 is configured in the upper surface side 53u
One, still, such as shown in figure 14, cross span portion 37 can also be made to pitch in upper surface 53u top-cross.In this case, lead to
The molten ball crossing fusing department 53d fusing and generating is close to the upper surface side 53u, therefore, can obtain identical as above-mentioned effect
Effect.The shape of conduction panel terminal 53X shown in Figure 14 is identical as shown in (a) in Figure 12, and only winding wire 30 is tied up
Method (winding state) is different.Specifically, the one end 33a and the other end 33b in the connecting line portion 33 of winding wire 30 are being led
Logical plate terminal 53X is configured in reciprocal side.It is, the one end 33a in connecting line portion 33 be not be hooked on it is another
The recess portion 56a of the end side 33b and make the recess portion 56a for being hooked on opposite side.In this way, can also be by connecting line portion 33 in width direction
Winding wire 30 is wound across conduction panel terminal 53X.
In addition, cross span portion 37 is positioned only at table in Figure 12 in conduction panel terminal 53V, 53X shown in (a) and Figure 14
The face side 53u still for cross span portion 37, is as long as being less than along the radical of lower surface 53w along the radical of upper surface 53u
It can.It is easy as a result, by the position of the molten ball 55 on the thickness direction of conduction panel terminal to upside (end 4 sides of hoop) control, therefore,
It can be avoided molten ball 55 and contact such situation with connecting line portion 33, broken string when welding can be prevented.In addition, as it is above-mentioned that
Sample, due to can it is easy to ensure that the distance between molten ball 55 and connecting line portion 33 (heat of molten ball 55 is difficult to connecting line portion
33 transmitting), therefore can be contributed to preventing from breaking.
In addition, winding wire 30 is not wound overlappingly in fusing department 53d as shown in (a) in Figure 12.That is, as in figure
Shown in dotted line K like that, in the curve part 39 of fusing department 53d, the end in cross span portion 37 and the second winding wire portion 32 are being connected
It is not wound overlappingly in the width direction of plate terminal 53V.Furthermore, it is also possible to by the end in cross span portion 37 and the second winding
Line portion 32 is wound with offseting one from another on the length direction of conduction panel terminal 53V.In addition, here, by winding wire 30 molten
The portion 53d of melting only winds a circle, still, in the case where winding a few, does not also carry out in the second winding wire portion 32 with overlapping each other
Winding.
In this way, winding wire 30 and conduction panel terminal can be made by the way that winding wire 30 to be wound along fusing department 53d
It is very close to each other between 53V.If needing to make to melt to reliably ensure to be powered if there are gaps between winding wire and terminal
Melt portion more to melt, as a result, molten ball is caused to become larger.In this case, the winding wire of more than molten ball and surrounding is (main
Winding portion or connecting line portion) it is closer, it is also applied with bigger thermal capacity, therefore, heat is easy to pass through conduction panel terminal to winding
Line or insulator transmitting can generate and be easy to cause the undesirable situation such as broken string or insulator fusing.On the other hand, by make around
It is very close to each other between group line 30 and conduction panel terminal 53V, fusing amount can be made small, therefore, molten ball 55 can be made small.Change speech
It can prevent undesirable situation as described above even if small molten ball 55 can also ensure that energization.
In addition, in Figure 12 (a) and (b) shown in example, in the fusing department 53d and Figure 10 of conduction panel terminal 53V (a)
Fusing department 53b etc. Deng shown in is compared, and the size of length direction and the size of width direction are all small, and, be formed as outside to diameter
The shape that side expands.Using such shape, can prevent in the fusing department 53d winding wire (the second winding wire portion 32) wound
It is detached from, and molten ball 55 generated can be made small.
In addition, (the example in the case where fusing department 53d is formed by material lower melting-point compared with the material of winding wire 30
Such as, the case where material of winding wire 30 is high-purity copper (oxygen-free copper), and the material of fusing department 53d is phosphor bronze), fusing department 53d
It is first melted than winding wire 30.Winding wire 30 is encased and is solidified by the fusing department 53d of fusing, becomes molten ball 55.In addition, winding
The envelope of line 30 is for example formed by the materials such as polyurethane (the lower melting-point material compared with fusing department 53d), therefore, with fusing department
53d fusing, which is compared, also first melts.Therefore, winding wire 30 is encased by molten ball 55, it is ensured that be powered.
It is, be completely melt relative to fusing department 53d, winding wire 30 be envelope be completely melt and core wire (copper wire) no
It is completely melt.Therefore, in molten ball 55, become boundary face (oxygen-free copper and the phosphorus formd between winding wire 30 (core wire)
Organizational boundary between bronze) state.Since conduction panel terminal 53V and winding wire 30 being engaged in this state, energy
Enough prevent the broken string at root 36.Also, due to forming above-mentioned organizational boundary in molten ball 55, thus, it is also possible to improve
Tensile strength.
In addition, the material of conduction panel 50 is set as and 30 phase of winding wire in the case where forming conduction panel 50 by a plate
Than lower melting-point material (such as phosphor bronze).Alternatively, it is also possible to only by conduction panel terminal 53V, 53X, or only will melting
Portion 53d is formed by material lower melting-point compared with winding wire 30.
In addition, the circle number in each position winding winding wire 30 such as terminal 53V is a circle or more.In addition, certainly, it can also
It is applied to conduction panel terminal 53 shown in (a) etc. etc. in Fig. 6 with winding state shown in by (a) in Figure 12 and (b).
[5-3. other]
The structure of the motor 1 illustrated in above-mentioned embodiment is an example, but is not limited to above-mentioned structure.That is, fixed
Son 2, rotor 3, the shape of end hoop 4 and structure are not limited to above-mentioned shape and structure.In addition, the structure of conduction panel 50 is also possible to
Structure other than the above.For example, the conduction panel terminal 53 of conduction panel 50 may not be configured at coiling packet 35 and terminal 42b it
Between middle part 70 axial direction on middle section, and be disposed on the position close to coiling packet 35, also can be only fitted to close
The position of terminal 42b.
Alternatively, it is also possible to be bent in the armstand portion 52 of conduction panel 50 with planar portions 51 into obtuse angle.Even if in the feelings
Under condition, it is also preferred that conduction panel terminal 53 protrudes setting from armstand portion 52 to the direction orthogonal with the axial direction of shaft 10 outward.?
It is exactly that it is orthogonal with conduction panel terminal 53 can also to be not configured to armstand portion 52.In addition it is also possible to 53 Xiang Buyu of conduction panel terminal
Protrude setting in the orthogonal direction of the axial direction of shaft 10.For example, if by conduction panel terminal 53 shaft 10 axial direction, towards shaft
10 front end side (end 4 sides of hoop) is protruded to oblique foreign side to be arranged, then the front end of conduction panel terminal 53 can be made further away from winding
Line 30 can make the influence of heat small.
In addition, conduction panel 50 can also not have armstand portion 52.That is, being also possible in plane identical with planar portions 51
The upper conduction panel provided with conduction panel terminal 53.In this case, so that conduction panel terminal 53 is located at coiling packet 35 and terminal
The mode of middle part 70 between 42b positions conduction panel relative to shaft 10, also, across insulation division in shaft 10
It is externally embedded to.It is, in this case, conduction panel not to be placed in the end face of iron core 20, and making conduction panel terminal 53
Mode positioned at specified position is configured.Even the rotor 3 of this spline structure, as described above, can avoid leading
While leading to the interference between plate and brush 4B, the reliability and workability for improving rotor 3 further can be improved rotor 3
Productivity.
Alternatively, it is also possible to configure conduction panel 50 and insulator 60 relative to iron core 20 in 40 opposite side of commutator.At this
In the case of kind, a possibility that interference between commutator 40, therefore, the configuration freedom raising of conduction panel terminal 53.
Alternatively, it is also possible to which conduction panel 50, insulator 60 and commutator 40 are integrally carried out injection molding.In this case, it will insulate
The resin component that body 60, supporter 41 and compacting part 44 are formed as one, workability when assembled improve.
In addition, the iron core 20, conduction panel 50 and insulator 60 for illustrating rotor 3 all have in above-mentioned embodiment
The shape of rotational symmetry three times, still, these are the shapes at least with rotational symmetry more than three times, are not limited to
Above-mentioned shape.
In addition, illustrating in above-mentioned embodiment and being met commutator terminal 42b and winding wire 30 by welding
It closes, the case where conduction panel terminal 53 and winding wire 30 are engaged by TIG welding, still, the method (type) of thermal bonding
It is not limited to above-mentioned method.For example, it is also possible to which two-terminal 42b, 53 are carried out by identical joint method (such as TIG welding)
Engagement.
For example, it is also possible to as shown in Figure 15, winding wire 30 be wound in commutator terminal 42b, before fusing department 42d
End side carries out welding to be electrically connected.Even if in this case, for above-mentioned winding state, for example, it is also possible to use with
Lower winding method: the radical of the lower face side in cross span portion 37 is made to be less than the radical of upper surface side；In fusing department 42d winding wire 30
It is not overlapped.In addition, the symbol 30s in figure is the initial line portion (front end) of winding wire 30, in this embodiment, it is located at fastener 42c, but
It is that can also configure the initial line portion 30s in fusing department 42d.
Alternatively, it is also possible to be set as, the molten ball generated is melted by fusing department 42d and is located at commutator terminal 42b's
Upper surface side.Also, the material of the fusing department 42d of commutator terminal 42b can also be set as with the material of winding wire 30 (such as
Oxygen-free copper) compare lower melting-point material (such as phosphor bronze).In addition, in this case, also can use composite material (
As being overlapped the material after other copper alloy on the phosphor bronze of base material) form the brush contact portion 42a of commutator segment 42.
It is, also can use different materials formed commutator terminal 42b (or fusing department 42d of commutator terminal 42b) and
Other positions.
In addition, the mode of connection for applying the motor of construction of above-mentioned electrical connection section is not particularly restricted, it is also possible to
The brush motor of the Δ mode of connection.In such a case, it is possible to which the interconnecting piece between commutator terminal and winding wire is using upper
The connecting structure stated.In addition, being also possible to brushless motor using the motor of the construction of above-mentioned electrical connection section.In such case
Under, above-mentioned connection can be applied in the interconnecting piece between the terminal and winding wire of the stator (energization part) of winding winding wire
Construction.
[6. note]
Part or all of above embodiment and variation can also be recorded in the way of following note.
(note A-1)
A kind of construction of electrical connection section is being electrically connected after the terminal of the energization part of motor and winding wire to be carried out to thermal bonding
The construction of socket part, which is characterized in that
The terminal has the fusing department positioned at the fastener of base end side and positioned at front end side,
The winding wire is included with the main winding portion of the motor of winding state setting；With the main winding portion it
Between be arranged, across connecting line portion with the support force bigger than the tension for pullling in the connecting line portion to main winding portion side
In the first winding wire portion as non-thermal joint portion that the fastener is entwined；It is continuously set with first winding wire portion
It is setting, in the second winding wire portion as thermal bonding portion that the fusing department is entwined.
(note A-2)
The construction of electrical connection section as described in being attached A-1, which is characterized in that
The terminal than the fusing department is difficult to the property melted being formed with to have by base end side than the fusing department
Melt difficulty portion.
(note A-3)
The construction of electrical connection section as described in being attached A-2, which is characterized in that
Melting difficulty portion cross-sectional area compared with the fusing department is big.
(note A-4)
The construction of electrical connection section as described in being attached A-3, which is characterized in that
The melting difficulty portion includes the wide width part widened and formed compared with the fusing department.
(note A-5)
The construction of electrical connection section as described in being attached A-3 or A-4, which is characterized in that
The melting difficulty portion includes the wall thickness formed in a manner of wall thickness compared with the fusing department.
(note A-6)
The construction of electrical connection section as described in being attached any one of A-3~A-5, which is characterized in that
It is formed compared with the melting difficulty portion in the fusing department by the notch section of cross-sectional area reduction.
(note A-7)
The construction of electrical connection section as described in being attached any one of A-2~A-6, which is characterized in that
The melting difficulty portion includes heterogeneous portion, which is difficult to melt by having compared with the material of the fusing department
The material of property formed.
(note B-1)
A kind of construction of electrical connection section is being electrically connected after the terminal of the energization part of motor and winding wire to be carried out to thermal bonding
The construction of socket part, which is characterized in that
The terminal includes the fastener positioned at base end side；Positioned at front end side and the fusing department that is thermally bonded；With than
The fusing department has the melting difficulty portion that the property melted is difficult to than the fusing department by base end side,
The winding wire is included with the main winding portion of the motor of winding state setting；With the main winding portion it
Between connecting line portion in the state of having acted on tension and the first winding wire for being arranged, being entwined in the fastener
Portion；With it is being continuously arranged with first winding wire portion, in the second winding wire portion that the fusing department is entwined.
(note B-2)
The construction of electrical connection section as described in being attached B-1, which is characterized in that
Melting difficulty portion cross-sectional area compared with the fusing department is big.
(note B-3)
The construction of electrical connection section as described in being attached B-2, which is characterized in that
The melting difficulty portion includes the wide width part widened and formed compared with the fusing department.
(note B-4)
The construction of electrical connection section as described in being attached B-2 or B-3, which is characterized in that
The melting difficulty portion includes the wall thickness formed in a manner of wall thickness compared with the fusing department.
(note B-5)
The construction of electrical connection section as described in being attached any one of B-2~B-4, which is characterized in that
It is formed compared with the melting difficulty portion in the fusing department by the notch section of cross-sectional area reduction.
(note B-6)
The construction of electrical connection section as described in being attached any one of B-1~B-5, which is characterized in that
The melting difficulty portion includes heterogeneous portion, which is difficult to melt by having compared with the material of the fusing department
The material of property formed.
(note C)
A kind of rotor, which is characterized in that
The rotor is the electrical connection section recorded using any one of note A-1~A-7 and note B-1~B-6
The terminal of the energization part and the winding wire are formed by connecting by construction.
(note D)
A kind of motor, which is characterized in that
The motor is the electrical connection section recorded using any one of note A-1~A-7 and note B-1~B-6
The terminal of the energization part and the winding wire are formed by connecting by construction.
Symbol description
1 motor
3 rotors
5,5W, 5X, 5Y, 5Z, 5Z ', 5Z " terminal
5a fastener
5b, 5b ', 5b " fusing department
5d wall thickness (zoning portion, melting difficulty portion)
The heterogeneous portion 5e (zoning portion, melting difficulty portion)
5f notch section
5g stage portion
5y molten ball
6 winding wires
The first winding wire of 6a portion (tie part)
The second winding wire of 6b portion
6c connecting line portion
6d main winding portion
The root 6e (one end)
30 winding wires
The end 30e line portion (front end)
30s initial line portion (front end)
31 first winding wire portions (tie part)
32 second winding wire portions
33 connecting line portions
34 main winding portions
35 coiling packets
36 roots (one end)
37 cross span portions
40 commutators (energization part)
42b commutator terminal (terminal)
42c fastener
42d fusing department
42e wide width part (zoning portion, melting difficulty portion)
50 conduction panels (energization part)
53,53R, 53S, 53T, 53V, 53X conduction panel terminal (terminal)
53a, 53a ', 53 " fasteners
53b, 53b ', 53b ", 53d fusing department
53c wide width part (zoning portion, melting difficulty portion)
The upper surface 53u (another side)
The lower surface 53w (on one side)
55 molten balls
A range
B melts difficult region
F1 connection tension (tension)
F2 support force
Claims (18)
1. a kind of construction of electrical connection section is the electrical connection carried out the terminal of the energization part of motor and winding wire after thermal bonding
The construction in portion, which is characterized in that
The terminal has the fusing department positioned at the fastener of base end side and positioned at front end side,
The winding wire includes tie part, winds in the fastener and one end is connected to and is generated by the fusing department
Molten ball；With connecting line portion, from wind state be arranged the motor main winding portion tensioning setting and with the bundle
The other end in bundle portion is continuous,
The one end of the tie part is not act in the connecting line portion to the tension that main winding portion side is pullled
State,
The tie part after the thermal bonding is that the support force for keeping the winding state relative to the fastener is made
State, the support force are bigger than the tension.
2. the construction of electrical connection section according to claim 1, which is characterized in that
The terminal has zoning portion, which carries out zoning for the fastener and the fusing department and keep the branch
The support force state bigger than the tension.
3. the construction of electrical connection section according to claim 2, which is characterized in that
The molten ball is to be limited when the winding wire is carried out thermal bonding by the front end side from the terminal by the zoning portion
Promote and generate.
4. the construction of electrical connection section according to claim 2, which is characterized in that
Zoning portion cross-sectional area compared with the fastener is big.
5. the construction of electrical connection section according to claim 4, which is characterized in that
The zoning portion includes the wide width part widened and formed compared with the fastener.
6. the construction of electrical connection section according to claim 4, which is characterized in that
The zoning portion includes the wall thickness formed in a manner of wall thickness compared with the fastener.
7. the construction of electrical connection section according to claim 4, which is characterized in that
It is formed with compared with the zoning portion in the fusing department by the notch section of cross-sectional area reduction.
8. the construction of electrical connection section according to claim 2, which is characterized in that
The zoning portion includes heterogeneous portion, and the heterogeneous portion compared with the material of the molten ball by having the property for being difficult to melt
Material is formed.
9. the construction of electrical connection section according to claim 2, which is characterized in that
In the terminal, the fastener, the zoning portion and the fusing department have been sequentially arranged from the base end side,
The tie part include by the zoning portion sideling across cross span portion, also,
The cross span portion is configured to, and is less than along the radical of the one side of the main winding portion side of the terminal along described one
The radical of the another side of face opposite side.
10. the construction of electrical connection section according to claim 9, which is characterized in that
The energization part includes the conduction panel that the winding wire is wound together with the iron core of the motor,
In the terminal of the conduction panel, the cross span portion is positioned only at another surface side.
11. the construction of electrical connection section according to claim 9, which is characterized in that
The molten ball is located at another surface side of the terminal.
12. the construction of electrical connection section according to claim 1, which is characterized in that
The energization part includes the conduction panel that the winding wire is wound together with the iron core of the motor,
The connecting line portion the conduction panel the terminal with by the base end side and the front end side connection length
The orthogonal width direction in direction, the two-end part in the connecting line portion is in the same side.
13. the construction of electrical connection section according to claim 1, which is characterized in that
The front end of the winding wire is located at the fusing department.
14. the construction of electrical connection section according to claim 1, which is characterized in that
The winding wire is wound in a manner of nonoverlapping in the fusing department.
15. the construction of electrical connection section according to claim 1, which is characterized in that
The fusing department is formed by material low-melting compared with the material of the winding wire.
16. the construction of electrical connection section according to claim 15, which is characterized in that
The material of the fusing department is phosphor bronze, and the material of the winding wire is oxygen-free copper.
17. a kind of motor, which is characterized in that
The motor is to utilize the construction of the electrical connection section of any one of claim 1~16 record by the energization part
The terminal and the winding wire be formed by connecting.
18. a kind of forming method of electrical connection section, be to be formed the energization part with terminal the terminal and winding wire it
Between electricity interconnecting piece method, the terminal base end side have fastener, front end side with fusing department and with motor
The winding wire thermal bonding,
The forming method of the electrical connection section is characterised by comprising:
Winding working procedure, in this process be arranged: by the winding wire be set as the motor made of winding state main winding portion,
The winding wire is wrapped in the first winding wire made of the fastener across connecting line portion between the main winding portion
Portion and with first winding wire portion continuously by the winding wire in the second winding wire portion that the fusing department is entwined；
And
Bonding process, the process carry out parallel or behind with the winding working procedure, by fusing department melting and described second
Winding wire portion carries out thermal bonding,
In the winding working procedure, with the support force ratio in first winding wire portion relative to the fastener by the connection
The big mode of the tension that line portion is pullled to main winding portion side, the winding wire is wound,
In the bonding process, the state for keeping the support force bigger than the tension unchangeably terminates thermal bonding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015256710 | 2015-12-28 | ||
| JP2015-256710 | 2015-12-28 | ||
| PCT/JP2016/087768 WO2017115681A1 (en) | 2015-12-28 | 2016-12-19 | Structure of electrical connection section, rotor and motor to which structure is applied, and method for forming electric connection part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107251381A CN107251381A (en) | 2017-10-13 |
| CN107251381B true CN107251381B (en) | 2019-08-27 |
Family
ID=59225089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680011688.0A Active CN107251381B (en) | 2015-12-28 | 2016-12-19 | The construction and forming method of electrical connection section, the motor for applying the construction |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10707729B2 (en) |
| JP (1) | JP6744299B2 (en) |
| CN (1) | CN107251381B (en) |
| DE (1) | DE112016006082T5 (en) |
| WO (1) | WO2017115681A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233640B (en) * | 2018-04-08 | 2023-08-22 | 重庆奥兴嘉科技有限公司 | Motor rotor commutator pressure equipment frock |
| DE102021122066A1 (en) | 2021-08-26 | 2023-03-02 | Audi Aktiengesellschaft | Rotor for a separately excited synchronous machine |
| WO2023176339A1 (en) * | 2022-03-17 | 2023-09-21 | 三菱電機株式会社 | Stator for rotating electrical machine, rotating electrical machine, method for manufacturing stator for rotating electrical machine, and method for manufacturing rotating electrical machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01157244A (en) * | 1987-12-11 | 1989-06-20 | Hitachi Ltd | Ceramics sliding current collecting body |
| CN1389967A (en) * | 2001-06-06 | 2003-01-08 | 马渊马达株式会社 | Rotor for small-sized motor and method for manufacturing the same |
| CN1598286A (en) * | 2003-09-12 | 2005-03-23 | 株式会社电装 | Starter with overheat protection device |
| CN101299391A (en) * | 2007-03-14 | 2008-11-05 | Tdk股份有限公司 | Method for connecting wire to wire connecting portion and wire connection structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04267026A (en) * | 1991-02-20 | 1992-09-22 | Oki Electric Ind Co Ltd | Reed relay |
| JP3913998B2 (en) * | 2001-03-01 | 2007-05-09 | マブチモーター株式会社 | Small motor rotor and method of manufacturing the same |
| WO2003019749A1 (en) * | 2001-08-31 | 2003-03-06 | Mitsubishi Denki Kabushiki Kaisha | Motor |
| JP2006180678A (en) * | 2004-12-24 | 2006-07-06 | Minebea-Matsushita Motor Corp | Rotor and its winding method |
| JP2006296023A (en) | 2005-04-07 | 2006-10-26 | Minebea-Matsushita Motor Corp | Commutator motor and its manufacturing method |
-
2016
- 2016-12-19 JP JP2017516792A patent/JP6744299B2/en not_active Expired - Fee Related
- 2016-12-19 CN CN201680011688.0A patent/CN107251381B/en active Active
- 2016-12-19 DE DE112016006082.3T patent/DE112016006082T5/en not_active Ceased
- 2016-12-19 WO PCT/JP2016/087768 patent/WO2017115681A1/en active Application Filing
-
2017
- 2017-09-13 US US15/703,585 patent/US10707729B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01157244A (en) * | 1987-12-11 | 1989-06-20 | Hitachi Ltd | Ceramics sliding current collecting body |
| CN1389967A (en) * | 2001-06-06 | 2003-01-08 | 马渊马达株式会社 | Rotor for small-sized motor and method for manufacturing the same |
| CN1598286A (en) * | 2003-09-12 | 2005-03-23 | 株式会社电装 | Starter with overheat protection device |
| CN101299391A (en) * | 2007-03-14 | 2008-11-05 | Tdk股份有限公司 | Method for connecting wire to wire connecting portion and wire connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6744299B2 (en) | 2020-08-19 |
| JPWO2017115681A1 (en) | 2018-10-18 |
| DE112016006082T5 (en) | 2018-09-06 |
| WO2017115681A1 (en) | 2017-07-06 |
| US10707729B2 (en) | 2020-07-07 |
| CN107251381A (en) | 2017-10-13 |
| US20180026499A1 (en) | 2018-01-25 |
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